Wyniki wyszukiwania - BazTech

1

Intelligent technologies for efficient power supply in transport systems

Bosyi D.

Transport Problems

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2017

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T. 12, z. spec.

57--70

EN

The main directions of development of the energy-saving technologies in electrified transport systems are considered in the article with taking into account the flexible regulating features of modern power equipment. The proposed theory and principles of functioning allow understanding the optimal control laws for converters, accumulators, and renewable energy sources in their integration into traction power supply systems. Research opens the possibility of the installed power of the required equipment in minimizing and reducing the capital costs for energy-saving technologies. Also, combination of all developed approaches will provide the system effect.

2

Improving the quality of voltage in the system of traction power supply of direct current

Sychenko V. G., Bosiy D. O., Kosarev E. M.

Archives of Transport

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2015

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Vol. 35, iss. 3

63--70

EN

Purpose of the work is improved approaches to ensure the required quality parameters of voltage in the traction network based on modern technologies and equipment in the application of power distribution system. Actuality. The introduction of high-speed traffic, increase weight standards Train necessitates increasing the carrying capacity of railways. Often the carrying capacity of existing sections electrified at 3.0 kV DC power supply unit limits. Such limitations include voltage decrease on the electric current collector below the allowable value for the normal operation of 2700 (2900 for high-speed V) and heating the contact wires, thereby losing their mechanical strength. Existing power supply system of RS, which have considerable installed traction substations, can not provide the required level of power density traction network for high-speed movement within 1.5 - 2 MW / km and, respectively, the required voltage quality. At the same time, the daily loading of a powerful traction substations in providing intensive schedule of trains does not exceed 20-25%, while the energy loss in traction network peak load increases and reaches 10-15% of the energy consumed. Thus, the existing system of power traction networks is not sufficiently effective and economical, even with the application of existing methods to strengthen them. In our view, the main limiting factor for a given quality of voltage in the traction network is the use of centralized power. From this, the development of measures to improve the quality of voltage in the traction network in the implementation of high-speed traffic in a growing scarcity of energy resources is an urgent task. Scientific novelty. Using distributed power supply system with adjustable supply points combined into intelligent power supply, which enables adaptive change the characteristics of the transfer, conversion and consumption and optimize the mode of functioning of the traction power supply is suggested for improving the quality of voltage in the traction network in the implementation of high-speed and heavy traffic. Practical significance. Improving the quality of voltage in the traction network by using the proposed circuit design traction power supply will ensure the desired mode voltage and power characteristics of the traction network in the implementation of high-speed and heavy traffic while reducing electricity losses by 20-30%.

3

Prąd dla szybszych kolei… i nie tylko

Besztak T.

Infrastruktura Transportu

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2013

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nr 1

10--13

PL

W ostatnich latach PKP Energetyka rozpoczęła modernizację głównych linii kolejowych, która powiązana jest z koniecznością budowy nowych lub rewitalizacji istniejących układów zasilania sieci trakcyjnej.

4

Zasilanie i tabor trakcyjny PKP w warunkach członkostwa Polski w Unii Europejskiej

Pabiańczyk J.

Przegląd Elektrotechniczny

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2009

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R. 85, nr 9

308-311

PL

W krajach Unii Europejskiej funkcjonują 4 podstawowe systemy zasilania trakcji. Powoduje to znaczące komplikacje przy prowadzeniu transportu międzynarodowego przez granice. Artykuł pokazuje niektóre problemy, dotyczące szczególnie zasilania trakcji, które powinny być pilnie rozwiązane. Jest to szczególnie ważne, ponieważ przez nasz kraj przebiegają najkorzystniejsze linie dla transportu międzynarodowego na kierunku zachód – wschód.

EN

In EU countries exist four basic systems traction supply. It cause some difficulties at railway international transport across the borders. This paper presents some problems concerning particularly PKP traction supply, which should be solved urgently as Poland became EU member. It is important because of polish lowland country is best way for international haulage on west – east course.

5

Zespoły prostownikowe 12-pulsowe do podstacji trakcyjnych PKP zasilanych średnim napięciem

Korzycki E.

TTS Technika Transportu Szynowego

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2002

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R. 9, nr 3-4

53-57

PL

Opracowana w Zakładzie Przekształtników Mocy Instytutu Elektrotechniki oraz wdrożona do produkcji w Fabryce ELTA i eksploatowana na podstacjach trakcyjnych PKP od ponad 15 lat pierwsza generacja 12-pulsowych trakcyjnych zespołów prostownikowych (typu PD-16/3,3 i PD-12/3,3) spełniała wymagania energetyki w zakresie dopuszczalnej wielkości współczynnika odkształcenia napięcia w linii zasilającej [1, 2, 3].